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Avoid referencing off the end of subplan_partition_offsets.

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Report by buildfarm member skink and Tom Lane.  Analysis by me.
Patch by Amit Khandekar.

Discussion: http://postgr.es/m/CAJ3gD9fVA1iXQYhfqHP5n_TEd4U9=V8TL_cc-oKRnRmxgdvJrQ@mail.gmail.com
This commit is contained in:
Robert Haas
2018-01-24 16:34:51 -05:00
parent d6ab720360
commit 945f71db84
3 changed files with 6 additions and 1 deletions
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2
src/include/executor/execPartition.h
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@@ -80,6 +80,7 @@ typedef struct PartitionDispatchData *PartitionDispatch;
* subplan_partition_offsets Integer array ordered by UPDATE subplans. Each
* element of this array has the index into the
* corresponding partition in partitions array.
* num_subplan_partition_offsets Length of 'subplan_partition_offsets' array
* partition_tuple_slot TupleTableSlot to be used to manipulate any
* given leaf partition's rowtype after that
* partition is chosen for insertion by
@@ -96,6 +97,7 @@ typedef struct PartitionTupleRouting
TupleConversionMap **child_parent_tupconv_maps;
bool *child_parent_map_not_required;
int *subplan_partition_offsets;
int num_subplan_partition_offsets;
TupleTableSlot *partition_tuple_slot;
TupleTableSlot *root_tuple_slot;
} PartitionTupleRouting;